#include <WiFi.h>
#include <ESPAsyncWebServer.h>
#include <SD.h>
#include <SPI.h>
const char* ssid = "ESP32-Access-Point"; // Access point name
const char* password = "123456789"; // Access point password
AsyncWebServer server(80); // Create an asynchronous web server on port 80
void setup() {
Serial.begin(115200); // Initialize the serial port
// Initialize the access point
WiFi.softAP(ssid, password);
Serial.println("Access Point started");
// Get the IP address
IPAddress myIP = WiFi.softAPIP();
Serial.print("ESP32 AP IP address: ");
Serial.println(myIP); // Print IP address to serial port
// Initialize SD card
if (!SD.begin()) {
Serial.println("SD card initialization failed!");
return;
}
Serial.println("SD card initialized successfully.");
// Set a handler for the root URL
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
String html = "<html><body>";
html += "<h1>Upload MP3 File</h1>";
html += "<form action=\"/upload\" method=\"POST\" enctype=\"multipart/form-data\">";
html += "<input type=\"file\" name=\"file\">";
html += "<input type=\"submit\" value=\"Upload\">";
html += "</form>";
html += "</body></html>";
request->send(200, "text/html", html); // Send HTML page
});
// Set up a handler for file upload
server.on("/upload", HTTP_POST, [](AsyncWebServerRequest *request){
// Handle file upload
}, handleFileUpload);
// Start server
server.begin();
Serial.println("HTTP server started");
}
void loop() {
// No client handling required since async server is used
}
void handleFileUpload(AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final) {
static File file; // Declare file variable as static so it retains its value between calls
if (!index) {
Serial.printf("Upload Start: %s\n", filename.c_str());
// Open file for writing to SD card
file = SD.open("/" + filename, FILE_WRITE);
if (!file) {
Serial.println("Failed to open file for writing");
request->send(500, "text/plain", "Failed to open file for writing");
return;
} else {
Serial.printf("File %s successfully opened for writing.\n", filename.c_str());
}
}
// Write data to file
if (len) {
file.write(data, len);
Serial.printf("Written %d bytes to file %s\n", len, filename.c_str());
}
if (final) {
file.close();
Serial.printf("File %s successfully loaded\n", filename.c_str());
request->send(200, "text/plain", "File uploaded successfully");
}
}
